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Finding the Fourth Proportional to 4,592.65, 6,888.99 and 1,129.90

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Solution

The fourth proportional to 4,592.65, 6,888.99 and 1,129.90 is: 1,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,592.65 : 6,888.99 = 1,129.90 : x
  2. Step 2: Convert to fraction form
    4,592.65/6,888.99 = 1,129.90/x
  3. Step 3: Cross multiply
    4,592.65x = 6,888.99 × 1,129.90
  4. Step 4: Simplify right side
    4,592.65x = 7,783,835.36
  5. Step 5: Solve for x
    x = 7,783,835.36/4,592.65
  6. Step 6: Final answer
    x = 1,694.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.